The basic functions of the Lotion Pump are as follows:
1. Sealing function. All consumers believe that they do not want to accept a product whose contents have been leaked. After the lotion pump head and bottle are charged and packaged, the sealing function is one of the important requirements of the bottled product during storage and transportation. For the parameters of the test method (such as vacuum degree, time, pressure, air pressure, etc.), each company has different control parameters for different customer requirements Make detailed instructions.
2. The pumping function of the lotion pump head. The feature of the lotion pump is that it can pump out the same volume of material liquid every time for consumers to use, so the pumping function is also one of the important requirements. The manufacturer's way of visually verifying this function is to turn on the lotion pump, press the head, then press the head to the end of the journey, block the body's water inlet with the fingers of the other hand, and release the head and let it naturally reverse bomb. The skin on the surface of the fingers can show a feeling of being sucked away (often referred to as "attraction"), and lotion can also be added, which is one of the main ways producers can confirm that the pump is fully functional.
3. Pump output. Refers to the volume of material emitted by the pump each time the consumer uses it. After the lotion pump head is filled with filler, press the pump material volume from the head to the moving endpoint, press the pump to output V=D2 * H/4. The pump discharge of the lotion pump head is relatively small, so always check the process 10 times continuously, take the average value. Some companies have two elements in grams (G). 1) When testing Use water as the medium. 2) The fluidity of the liquid is not good, and the metering cylinder cannot be read. If the material liquid is used as the medium, the density of the material liquid must also be considered when setting the pump discharge standard.
4. Pneumatic times. This refers to the number of times the consumer opens the head and presses the head until the first liquid comes out. Theoretically, with the lotion pump head fully open, the volume of space from the head nozzle to the end of the straw is divided by the rated pump discharge. The manufacturer will add a 1.1 to 1.3 insurance factor when setting it up. The influencing factors are mainly the thickness and length of the straw and the accumulation of various parts of the lotion pump head.Gauge tolerance. The volume of the shaded area in the lotion pump head/pump output = a number of pneumatics.